Patent SG-11201900621W-A (SG)
Title: Safety system for lubrication of the cylinder of a large slow-running internal combustion engine and a large slow-running two-stroke internal combustion engine
Inventor: KRISTENSEN NIKOLAJ
IPC: F01M11/10
Filed: 2017-08-03
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 08 February 2018 (08.02.2018) WIP0 I PCT ~~ll~~~~~~~~ 011101010VIIIOH olo olioloio mil NE Elio ow (10) International Publication Number WO 2018/024308 Al 20 Y bar 24 (51) International Patent Classification: F01M 1/08 (2006.01) F0111111/02 (2006.01) FO1M 11/10 (2006.01) (21) International Application Number: PCT/DK2017/050258 (22) International Filing Date: 03 August 2017 (03.08.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: PA 2016 70585 05 August 2016 (05.08.2016) DK (71) Applicant: HANS JENSEN LUBRICATORS A/S [DK/DK]; Smedevwnget 3, 9560 Hadsund (DK). (72) Inventor: KRISTENSEN, Nikolaj; Petersborgvej 2, 2., 9000 Aalborg (DK). (74) Agent: PATRADE A/S; Fredens Tory 3A, 8000 Aarhus C (DK). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (54) Title: SAFETY SYSTEM FOR LUBRICATION OF THE CYLINDER OF A LARGE SLOW-RUNNING INTERNAL COM- BUSTION ENGINE AND A LARGE SLOW-RUNNING TWO-STROKE INTERNAL COMBUSTION ENGINE 10 f 14 1 17 19 16 15 -P1 Z bar -K1 X1 bar -K2 X2 bar 21 -K3 X3 ba -K4 X4 ba K5 X5 bar cc O O cc O C -K6 X6 bar -K7 X7 bar -K8 X8 bar 12 11' (57) : Safety system for lubrication of the cylinder of a large slow- running internal combustion engine and a large slow- running two-stroke internal combustion engine A system for lubrication of the cylinder (1) of a large slow-running internal combustion engine. The lubrication system comprises a plurality of lubricant injectors (4) of which each one is connected via one of a corresponding plurality of lubricant supply lines (9) to a lubricant pump unit (11). The injectors (4) have an injection pressure level at which the injectors (4) are activated for ejecting lubricant. Each of the plurality of lubricant supply lines (9) is connected to an upstream side of one of a corresponding plurality of overpressure relief valves (16) for opening the overpressure re- lief valve (16) when the pressure in the corresponding lubricant supply line (9) exceeds a predetermined overpressure relief level which is above the injection pressure [Continued on next page] WO 2018/024308 Al IMEDIMOMOIDEIREI01001101010HIMMOMEHOIMIE (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) level. The downstream sides of all overpressure relief valves (16) are connected to a common overpressure detection device (17, 19, 26), which is configured for giving a signal when a pressure in any one of the plurality of lubricant supply lines (9) exceeds the predetermined overpressure relief level. In particular, the overpressure relief valves (16) are provided remotely from the lubricant pump unit (11) and are communicating only by pipes (9, 15) via the lubricant supply lines (9) to the lubricant pump unit (11).